Add 40/72 and 6/21
40/72 + 6/21 is 53/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 21 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 72 × 7 = 504,
40/72 = 40 × 7/72 × 7 = 280/504 - Likewise, for the 2nd fraction, since 21 × 24 = 504,
6/21 = 6 × 24/21 × 24 = 144/504 - Add the two like fractions:
280/504 + 144/504 = 280 + 144/504 = 424/504 - 424/504 simplified gives 53/63
- So, 40/72 + 6/21 = 53/63
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